(56) باب عِدَّةِ الْحَامِلِ الْمُتَوَفَّى عَنْهَا زَوْجُهَا
It was narrated that Abu As-Sanabil said:
"Subai'ah gave birth twenty-three or twenty-five days after her husband died, and when her Nifas ended she expressed her wish to remarry and was criticized for that. Mention of that was made to the Messenger of Allah and he said: 'There is nothing to stop her; her term has ended.'"
Reference: Sunan an-Nasa'i 3508
In-book reference: Book 27, Hadith 120
English translation: Vol. 4, Book 27, Hadith 3538